-er eee eek eem een eep eer eie eii eik eim ein eip eir eke eki ekp ekr em- eme emi emk emm emn emp emr en- ene eni enk enm enn enp enr ep- epe epi epm epn epp epr ere eri erk erm ern erp err ie- iee iei iek iem ien iep ier iie iii iim iin iip iir ike iki ikk ikr im- ime imi imm imn imp in- ine ini ink inm inn inp inr ipe ipi ipm ipn ipp ipr ir- ire iri irk irm irn irp irr ke- kee kei kek kem ken kep ker kie kii kik kim kin kip kir kke kki kkk kkm kkn kkp kkr kme kmi kmk kmm kmp kn- kne kni knk knm knn knp knr kpe kpi kpk kpm kpn kpp kpr kri krk krn krp krr m-r mee mei mek mem men mep mer mi- mie mii mik mim min mip mir mke mkk mkm mkn mkp mkr mme mmi mmk mmm mmn mmp mmr mne mni mnk mnm mnn mnp mnr mpe mpi mpk mpm mpn mpp mpr mre mri mrk mrm mrn mrp mrr n-i ne- nee nei nek nem nen nep ner nie nii nik nim nin nip nir nke nki nkk nkm nkn nkp nkr nme nmi nmk nmm nmn nmp nmr nne nni nnk nnm nnn nnp npe npi npm npn npp npr nre nri nrk nrm nrn nrp nrr p-p pee pei pek pem pen pep per pie pii pik pim pin pip pir pke pki pkm pkn pkp pkr pme pmi pmk pmm pmn pmp pmr pn- pne pni pnk pnm pnn pnp pnr ppe ppi ppk ppm ppn ppp ppr pre pri prk prm prn prp prr re- ree rei rek rem ren rep rer rie rii rik rim rin rip rir rke rkk rkm rkp rme rmi rmm rmn rmp rmr rni rnm rnn rnp rnr rpe rpi rpk rpm rpn rpp rpr rri rrk rrm rrn rrp rrr